For
1970, the Boss 302 received new tape stripe treatment which began on the hood,
came down the front fender and then across the sides of the rear of the
car. The standard wheel size was still 15 x 7, but a trim ring/hubcap
arrangement was standard, instead of the Magnum 500s. Chrome Magnum 500s
were still an option, but only for the Boss 302, as was the shaker hood
scoop.

New for the Boss 302 was a redesigned dual
exhaust system, Competition suspension, and the standard Hurst shifter.
Smaller intake valves could also be found, along with aluminum valve covers
which replaced the chrome ones from the previous year.

A gloss black hood scoop outlined the '70 Boss
429, along with chrome Magnum 500s using a Boss 302 center cap. Available
colors were Grabber Blue, Grabber Orange, Grabber Green, Calypso Coral and
Pastel Blue. Only black or white was available as the interior
color. For 1970, 499 Boss 429s were produced, as the KK numbers ranged
from KK2060 to KK2558.

The consecutive unit number on the Boss 302
could be found on the engine block, and the Boss 429s had additional VIN numbers
on the transmission, engine block and inner fenders.